Aggregation‐Induced Emission Molecular Design for Mitigating Non‐Radiative Energy Loss in Organic Solar Cells
Chinese Academy of Sciences · Hong Kong University of Science and Technology · +8 more institutions
Abstract
ABSTRACT Non‐radiative energy loss remains a critical bottleneck limiting the open‐circuit voltage ( V OC ) and efficiency of organic solar cells (OSCs). Here, we introduce a molecular design strategy that leverages aggregation‐induced emission (AIE) to suppress aggregation‐caused quenching and enhance solid‐state photoluminescence quantum yield (PLQY), thereby mitigating non‐radiative recombination. A prototypical AIE motif, tetraphenylethylene, was incorporated into the terminal group of a Y‐series non‐fullerene acceptor to yield dTPE, which exhibits distinct AIE characteristics not previously observed in high‐performance Y‐series acceptors. Photoluminescence studies reveal that dTPE achieves a threefold…
Citation impact
- FWCI
- 30.91
- Percentile
- 100%
- References
- 56
Authors
19- YZYingze Zhang
Chinese Academy of Sciences, Hong Kong University of Science and Technology, Changchun Institute of Applied Chemistry, University of Hong Kong
- RZRongkun Zhou
Beijing University of Technology
- MRMingjie Rong
Chinese Academy of Sciences, Changchun Institute of Applied Chemistry
- XZXianghao Zeng
Hong Kong University of Science and Technology, Jiangmen Polytechnic, University of Hong Kong
- HMHo Ming Ng
Hong Kong University of Science and Technology, University of Hong Kong
Topics & keywords
- Photoluminescence
- Quantum yield
- Electroluminescence
- Quantum efficiency
- Organic solar cell
- Acceptor
- Quenching (fluorescence)
- Photovoltaic system
- Affordable and clean energy